Oedemaperla, Mynott, Julia H, Suter, Phillip J & Theischinger, Gunther, 2017

Mynott, Julia H, Suter, Phillip J & Theischinger, Gunther, 2017, Revision of the genus Dinotoperla Tillyard, 1921 (Plecoptera: Gripopterygidae) using morphological characters and molecular data: Establishes two new genera, three new species and updates the larval taxonomy, Zootaxa 4224 (1), pp. 1-76 : 55

Oedemaperla , gen. nov.

Type species: Dinotoperla cardaleae Theischinger, 1982 . Mem. Qd. Mus. 20: 493.

Generic description. Adult: Forewing with Rs simple and CuA forked; more than 1 distal crossvein in each space between R1 and CuA. Hindwing with MP and CuA fused for a part. Male tergite X with anterior and lateral sclerites and without posterior sclerite. Very distinct posterolateral production of tergite IX; central sclerite of tergite X produced into a small membranous cone; epiproct with apical ventral spur; paraprocts slightly angulated and twisted, foliate. Diagnostic characters for the adult male are the very distinct posterolateral production of tergite IX, the small membranous dorsal cone on tergite X and the slightly angulated and twisted paraprocts.

Larva. Cerci not as long as body with very thin and elongated segments. Paraprocts triangular with a rounded tip, length of paraproct is subequal to basal width. Robust body with sturdy legs. Frons covering the clypeus. Pronotum not extending past width of head. Femoral spur present. Distinguishing character is the presence of a femoral spur.

Remarks. Three species are currently recognised in this genus with no species as yet having both life stages associated. Two adult males collected were regarded as O. cardaleae but were genetically distinct. The two species for which larval specimens were collected show distinct morphological features between them with the larvae which did not group with an adult male described as new. The distribution of these three species is in north Queensland.

Etymology. From the Greek oidema for swelling which is characterised by the projection on the femora in the larvae and on tergite IX of the adult male.